Regkey functions return error code instead of bool

ceee/ie/common/ceee_util.cc

 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 //
 // Utility functions for CEEE.
 
 #include "ceee/ie/common/ceee_util.h"
 
 #include "base/basictypes.h"
 #include "base/logging.h"
 #include "base/win/registry.h"
 
 #include "toolband.h"  // NOLINT
 
 namespace ceee_util {
 
 bool IsIeCeeeRegistered() {
   wchar_t clsid[40] = { 0 };
   int num_chars = ::StringFromGUID2(CLSID_ToolBand, clsid, arraysize(clsid));
   CHECK(num_chars > 0);
 
   std::wstring path(L"CLSID\\");
   path += clsid;
 
   base::win::RegKey key;
-  return key.Open(HKEY_CLASSES_ROOT, path.c_str(), KEY_QUERY_VALUE);
+  return (key.Open(HKEY_CLASSES_ROOT, path.c_str(), KEY_QUERY_VALUE) ==
+      ERROR_SUCCESS);
 }
 
 }  // namespace ceee_util